冲击地压深孔断顶爆破钻孔布置优化研究与应用

Research and Aapplication of Drilling Layout Optimization for Rock Burst Deep Hole Broken Top Blasting

针对煤矿开采过程中覆岩受俯冲力不断增强的现场问题,采用了理论分析和深孔断顶爆破等方法,借用钻孔窥视技术分析了钻孔爆破效果,对爆破钻孔间距进行了优化布置研究与应用,解决了冲击地压对煤矿开采过程中的危害,此研究成果优化了某矿井西二采区待回采二片工作面的爆破钻孔间距,提高了爆破效果,降低了工程成本与现场工程量,为冲击地压灾害防治提供了一定参考。

In view of the field problem of increasing subduction force on overburden in the process of coal mining,the methods of theoretical analysis and deep hole broken top blasting are adopted,the effect of borehole blasting is analyzed by using borehole peeping technology,the distance between blasting boreholes is optimized,and the harm of rockburst to coal mining is solved,The research results optimize the blasting drilling spacing of the two working faces to be mined in the west No.2 mining area of a mine,improve the blasting effect,reduce the engineering cost and on-site quantities,and provide a certain reference for the prevention and control of rockburst disaster.